Question

Manpreet bought a new car. The value of the car is Rs. 45000. If rate of depreciation is 10% per
annum then what will be the value of the car after 2 years

Answer 1

10%of 45000=10/100*45000= 4500
After two years 2*4500=9000 then
Total value of car= 45000+9000=54000

Answer 2

$\underline \bold{Solution:-}$

Cost of car (P) = 45000rupees

Time = 2 years

Rate of depreciation = 10 %

Amount

$= P {(1 - \frac{rate}{100}) }^{time}$
$= 45000 {( 1-\frac{10}{100}) }^{2} \\ \\ = 45000 {( 1 - 0.1) }^{2} \\ \\ = 45000 \times {0.9}^{2} \\ \\ =36450$

After 2 years it's cost will be 36450 rupees.